Toothed whale

A cetacean in the group Odontoceti, characterized by teeth rather than baleen. The group includes dolphins, porpoises, sperm whales, and other lineages.

Echolocation: Biological sensing that uses reflected sound waves to locate objects and estimate their distance or shape. Many toothed whales emit clicks and interpret returning echoes to find prey and navigate.
Cetacea: The mammalian order comprising whales, dolphins, and porpoises. Odontoceti is one of the two major living branches of cetaceans.
Sperm whale: A large toothed whale known for its massive head and deep-diving hunts for squid. It is a prominent deep-diving member of Odontoceti.
Bycatch: The unintended capture of non-target animals during fishing operations. Fishing gear can entangle toothed whales and cause injury or death.
Melon (cetacean anatomy): A fatty organ in the forehead of toothed whales that helps focus outgoing echolocation clicks. This organ shapes the sound beam used in toothed-whale echolocation.
Odontoceti: The cetacean suborder containing all living toothed whales. This is the taxonomic group named by the concept itself.
Orca: The largest dolphin species, a toothed whale with varied diets and complex social groups. Its varied prey and cooperative hunting illustrate the group's ecological range.
Sonar: A system that uses sound propagation to detect or locate objects underwater. Some naval sonar can disrupt toothed-whale behavior and is linked to strandings.
Phonic lips: Paired structures in the nasal passages of toothed whales that generate echolocation clicks. They produce the clicks that the melon focuses into a directional beam.
Mysticeti: The cetacean suborder of baleen whales, which filter-feed rather than capture prey with teeth. Mysticeti is the sister group to Odontoceti and defines its main contrast.

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